Number of n-length words w over a 9-ary alphabet {a_1,...,a_9} such that w contains never more than j consecutive letters a_j (for 1<=j<=9).
A242632
Number of n-length words w over a 9-ary alphabet {a_1,...,a_9} such that w contains never more than j consecutive letters a_j (for 1<=j<=9).
Terms
- a(0) =1a(1) =9a(2) =80a(3) =711a(4) =6318a(5) =56143a(6) =498896a(7) =4433274a(8) =39394819a(9) =350068993a(10) =3110771999a(11) =27642843622a(12) =245638961566
External references
- oeis: A242632